Crushing-mill for stalks or the like.



F. FUCHS, GRUSING MILL FOB. STALKS 0B THE LIKE.

APPLIOATION FILED MAY 10, 1907.

Patented Julyz?, 1909.

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. P. FUCHS. Y ORUSHING FOB STALKS 0B THE LIKE.

' APPLIOATION FILED MAY 1o, 1907.

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RITZ FUCHS, OF VIENNA, AUSTRIA-HUNGARY, ASSIGNOR TO JUTE AND HMP MANUFAC-v ronnie oonr. Lrn, or BUDAPEST, AUSTRIAQHUNGARY. V

CRUSHING-MILL FOR STALKS R THE LIKE.

Specification of Letters Patent.

Application led May 10, 1907. Serial No. 372,976.

Patented July 27, 1909.

To all whom it may concern.'

Be it known that i, Fnrrz FUCHS, a subject ofthe Emperor of Austria-Hungary, and residing at 9 Breitegasse, in Vienna, Austria- Hungary, have invented certain new and useful Improvements in Crushing-Mills for Stalks or the Like; and l do hereby declare that the following is such a lull, clear, and exact description of the invention as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to apparatus for breaking plants, especially those belonging to the families of the T yphacces, Uyperacees, Juncace'es and Graf/aimes, and it operates to break the woody liber in separating` the useful fiber from the non-librous matter.

The object ofthe invention is to produce a machine efficient in action. rihe stalks, after being fed into the machine, pass between a pluralityT of crushing rollers, a guideplate with a number oic upright flanges converging in the feeding direction being disposed between the adjoining sets of coperating rollers, in order to equally distribute the fibrous band over the whole length of the rollers. Other features of my invention are more particularly pointed out in the specilication.

ln the drawing, Figure 1 is a side-elevation of the improved machine, only three sets of rollers being represented with a part of the frame removed; Fig. 2 is a plan view; Fig. 3 another vertical elevation, the frame being removed from the front part of the rollers and Fig. 4 shows sprinkler details.

rlhe machine is provided with a pluralityT (4() to 60) of sets ot' rollers, each set containing three superposed rollers 1, 2, 3, the central roller 2 being journaled with its spindles 2ZL in lined bearings of the frame parts 4 and 5 while the top and bottom rollers 1, 3 are journaled in boxes, 1() and 11, respectively, loosely mounted for sliding movement in slots 6 and 7 of the frame and subject to adjustable spring pressure from springs 8, 9, respectively, in order to force the top and the bottom roller against the central roller 2. The spindles 1a, 2a, 3a, respectively, project from the frame 4, and each carries one gear wheel (12, 13, 14, respectively) each of which meshes with one of three other gearwheels 15, 16, 17, which, meshing together,

form an intermediate gearing, the gear wheel,

15 meshing with gear 16, which, in turn, meshes with wheel 17. The central wheel 16 is journaled in the frame 4 and connected by means of links 18, 19 with the pins of the two other gears 15 and 17, and these are held, at suitable distance from the spindles, 1a, 2a, respectively, by means of links'20, 21. By these means, the rotary motion ol' the central roller 2 (driven from the pulley 22) is transmitted through the gear wheels 13 and 16, 15 and 12, 17 and 14, to the vertically movable top and bottom rollers, and, in order to assure an equal rotation of all roller sets, the central roller of each set is provided with a sprocket. The transmission of motion from one roller 2 to the neighboring roller 2 is effected by chains 23 and gears 24. With the exception of the first and the last roller, two gears are jonrnaled on each rollerpin 2a, of which one is connected with the preceding .and the other with the following gear. v The appearance of chains 23 at the right of Fig. 2 is caused by the omission of an odd number ol rolls.

The stalks are fed into the machine in the direction of the arrow 25 (Fig. 1) and pass between the lirst central and top roller, and thence successively between the upper and central rollers of each pair, and, when they leave the last top roller (see left end of Fig. 3) especially, the stalks are carried, by means of a elt 26 which passes in the direction of the arrow 27 over the rollersk 2S, 29, 30 and 31 and by means of the guide-way 32 between the central and bottom rollers and after a straight backward course the material finally leaves the machine at the mouth-piece 33.

To provide a pathway for the material passing between the rolls, metallic sheets 34 are disposed between the adjoining rollers 2, and the adjoining rollers 3 respectively, against which sheets are pressed tightly by means of springs 35 the edges of the sheets acting as Scrapers in order to scratch o the material from the rollers. @ther Scrapers 36 are pivotally arranged and forced against the rollers 1 by springs 37. Every sheet 34 1s provided with a number ol' upright guiding strips 38 which are converging in the direction of the moving iibers, in order to equally distribute the material over the whole length of the rollers and to prevent it from escaping guiding portions horizontal, endless belts 39 are disposed to keep the iibers down. The endless belts 39 are stretched over rollers, for the purpose of keeping down the material to be worked. By friction of the material the belts may eventually be moved, but they have no special arrangement to move them. rlhe movable arrangement of the belt, is for the purpose of diminishing, as much as possible, the friction ofthe material on the belt.

Gn the way from one pair of cooperatingV crushing rollers to the next one unprepared raw material is sprinkled with water running from the sprinkler tubes-40 (Fig. 4) whereby the fibers become soft, andare prevented from sticking to the rollers. rihe rollers are lubricated with oil, illed into receptacles 41 which are placed above the top and bottom rollers. Y

Sometimes only two rollers may be provided in each set, but the construction described is preferable, because there is always one central roller cooperating with two' others.

What I claim is Y Y In a machine of thev character described the combination of a plurality of roller sets each having a central roller and verticallymovable top and bottom roller, path-ways arranged between the adjoining central rollers, other pathways between the adjoining` bottom rollers and a plurality of upright guides disposed upon each of the said pathways, said guides converging in the direction in which the material passes through the machine and subdivding the path-ways, substantially as described.

In testimony whereof l afliX my signature in presence of two witnesses.

FRITZ FUCHS,

Witnesses ALvns'ro S. HOGUE, AUGUsT FUGGER. 

